IT1035286B - Struttura di pala per eliche e procedimento per realizzarla - Google Patents

Struttura di pala per eliche e procedimento per realizzarla

Info

Publication number
IT1035286B
IT1035286B IT49066/75A IT4906675A IT1035286B IT 1035286 B IT1035286 B IT 1035286B IT 49066/75 A IT49066/75 A IT 49066/75A IT 4906675 A IT4906675 A IT 4906675A IT 1035286 B IT1035286 B IT 1035286B
Authority
IT
Italy
Prior art keywords
propellers
realizing
blade
procedure
Prior art date
Application number
IT49066/75A
Other languages
English (en)
Original Assignee
Bolt Beranek & Newman
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bolt Beranek & Newman filed Critical Bolt Beranek & Newman
Application granted granted Critical
Publication of IT1035286B publication Critical patent/IT1035286B/it

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/02—Propulsive elements directly acting on water of rotary type
    • B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
    • B63H1/14—Propellers
    • B63H1/26—Blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/02—Propulsive elements directly acting on water of rotary type
    • B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
    • B63H1/14—Propellers
    • B63H1/18—Propellers with means for diminishing cavitation, e.g. supercavitation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Hydraulic Turbines (AREA)
  • Earth Drilling (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
IT49066/75A 1974-04-12 1975-04-14 Struttura di pala per eliche e procedimento per realizzarla IT1035286B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/460,289 US3972646A (en) 1974-04-12 1974-04-12 Propeller blade structures and methods particularly adapted for marine ducted reversible thrusters and the like for minimizing cavitation and related noise

Publications (1)

Publication Number Publication Date
IT1035286B true IT1035286B (it) 1979-10-20

Family

ID=23828100

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49066/75A IT1035286B (it) 1974-04-12 1975-04-14 Struttura di pala per eliche e procedimento per realizzarla

Country Status (14)

Country Link
US (1) US3972646A (it)
JP (1) JPS514792A (it)
AU (1) AU500970B2 (it)
BR (1) BR7502226A (it)
DE (1) DE2515560C3 (it)
DK (1) DK158775A (it)
FI (1) FI751077A (it)
FR (1) FR2267236B1 (it)
GB (1) GB1509996A (it)
IE (1) IE41885B1 (it)
IT (1) IT1035286B (it)
NL (1) NL7504297A (it)
NO (1) NO140531C (it)
SE (1) SE426308B (it)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4012172A (en) * 1975-09-10 1977-03-15 Avco Corporation Low noise blades for axial flow compressors
US4131387A (en) * 1976-02-27 1978-12-26 General Electric Company Curved blade turbomachinery noise reduction
US4370097A (en) * 1979-07-16 1983-01-25 United Technologies Corporation Noise reduction means for prop-fan
US4358246A (en) * 1979-07-16 1982-11-09 United Technologies Corporation Noise reduction means for prop-fan and the construction thereof
US4358245A (en) * 1980-09-18 1982-11-09 Bolt Beranek And Newman Inc. Low noise fan
US4569631A (en) * 1984-08-06 1986-02-11 Airflow Research And Manufacturing Corp. High strength fan
FR2605588B1 (fr) * 1986-10-24 1989-04-28 Onera (Off Nat Aerospatiale) Perfectionnements apportes aux helices aeriennes, notamment pour propulseurs d'aeronef
JPH0660638B2 (ja) * 1987-10-07 1994-08-10 松下電器産業株式会社 斜流羽根車
JPH01307631A (ja) * 1988-06-06 1989-12-12 Hitachi Ltd 高温用容量型圧力計
US4930990A (en) * 1989-09-15 1990-06-05 Siemens-Bendix Automotive Electronics Limited Quiet clutch fan blade
US5064345A (en) * 1989-11-16 1991-11-12 Airflow Research And Manufacturing Corporation Multi-sweep blade with abrupt sweep transition
CA2020765C (en) * 1990-07-09 2000-02-22 Hung Do Propeller blade configuration
GB9022281D0 (en) * 1990-10-13 1991-02-20 Westland Helicopters Helicopter rotor blades
US5192193A (en) * 1991-06-21 1993-03-09 Ingersoll-Dresser Pump Company Impeller for centrifugal pumps
DE69228189T2 (de) * 1991-08-30 1999-06-17 Airflow Research & Mfg. Corp., Watertown, Mass. Ventilator mit vorwärtsgekrümmten schaufeln und angepasster schaufelkrümmung und -anstellung
US5489186A (en) * 1991-08-30 1996-02-06 Airflow Research And Manufacturing Corp. Housing with recirculation control for use with banded axial-flow fans
US5584661A (en) * 1994-05-02 1996-12-17 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Forward sweep, low noise rotor blade
EP1107906B1 (de) * 1998-09-04 2003-08-27 Manfred Meincke Vorrichtung zum antrieb eines bootes
US6135831A (en) * 1999-10-22 2000-10-24 Bird-Johnson Company Impeller for marine waterjet propulsion apparatus
US6340290B1 (en) 2000-06-20 2002-01-22 Brunswick Corporation Controllable pitch propeller with a fail safe increased pitch movement
GB2426297B (en) * 2004-03-18 2008-10-08 Frank Daniel Lotrionte Turbine / rotor
EP1801422B1 (de) * 2005-12-22 2013-06-12 Ziehl-Abegg AG Ventilator und Ventilatorflügel
FR2908152B1 (fr) * 2006-11-08 2009-02-06 Snecma Sa Aube en fleche de turbomachine
US20100000461A1 (en) * 2008-07-07 2010-01-07 Waite Arthur G Foil shapes for use in barge skegs and marine propeller shrouds
JP5675264B2 (ja) * 2010-10-19 2015-02-25 三菱重工業株式会社 船舶及び推進装置
US8998582B2 (en) 2010-11-15 2015-04-07 Sundyne, Llc Flow vector control for high speed centrifugal pumps
US20130259693A1 (en) * 2012-04-03 2013-10-03 Yih-Wei Tzeng Ship propeller
WO2014066508A2 (en) * 2012-10-23 2014-05-01 General Electric Company Unducted thrust producing system architecture
US9217332B2 (en) * 2012-11-05 2015-12-22 Mohammad Ismail Abbassi Shakibapour Uni-directional axial turbine blade assembly
RU2721214C2 (ru) * 2015-11-16 2020-05-18 Р.Е.М. Холдинг С.Р.Л. Малошумная и высокоэффективная лопасть для осевых вентиляторов и роторов и осевой вентилятор или ротор, содержащий упомянутую лопасть
US20220307520A1 (en) * 2015-11-16 2022-09-29 R.E.M. Holding S.R.L. Low noise and high efficiency blade for axial fans and rotors and axial fan or rotor comprising said blade

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1088883A (en) * 1913-05-20 1914-03-03 Emil Imle Screw-blade for impellers.
NL20110C (it) * 1924-01-22
US1882164A (en) * 1931-05-08 1932-10-11 Charles H A F L Ross Fluid reactive surface
US2582559A (en) * 1947-04-14 1952-01-15 Elmer O Pearson Variable pitch propeller
SE332579B (it) * 1970-04-10 1971-02-08 Karlstad Mekaniska Ab

Also Published As

Publication number Publication date
NO140531C (no) 1979-09-19
DE2515560A1 (de) 1975-10-23
BR7502226A (pt) 1976-02-10
SE7503266L (sv) 1975-10-13
NO140531B (no) 1979-06-11
GB1509996A (en) 1978-05-10
NL7504297A (nl) 1975-10-14
US3972646A (en) 1976-08-03
DK158775A (it) 1975-10-13
NO751181L (it) 1975-10-14
SE426308B (sv) 1982-12-27
JPS514792A (en) 1976-01-16
IE41885B1 (en) 1980-04-23
FR2267236A1 (it) 1975-11-07
FI751077A (it) 1975-10-13
FR2267236B1 (it) 1980-07-18
DE2515560B2 (it) 1979-01-25
AU500970B2 (en) 1979-06-07
DE2515560C3 (de) 1979-09-13
AU8002175A (en) 1976-10-14
IE41885L (en) 1975-10-12

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